On the Industrial Adaptability of the Packings for the Heavy Water Distillation Tower

We investigated the following subjects: Various kinds of packing material permitting industrial use in the packed water rectification system for enriching heavy water (1) Mechanical properties including: (i) Deformation in long use (ii) Relation between the column diameter and the requirement of packing (iii) Void of packing (2) Effects on rectification including: (i) Variations in H. E. T. P. with column diameter and height (ii) Increase in H. E. T. P. through long use of packing (3) Effects on pressure loss by steam flow rate and column diameter. (4) Hold-up (5) Comparison of required periods to attain equilibrium on the basis of the factor of (H. E. T. P.)·HT/L which represents the properties of packing (6) Economic evaluation of packing Our paper of the availability of various packings for industrial installation with major emphasis laid on the above-mentioned McMahon packing, indicates that 1/2'' McMahon packing is most preferable in effecting commercial production by the rectifying column for enriching low or medium-concentrated heavy water.